The dark areas on the map show the distribution of coral reefs around the world. what explanation best describes why the distribution of coral reefs is limited to the areas shown on the map? large groups of killer whales prefer living at the poles rather than the lower latitudes. most killer whales congregate in the areas that are near the arctic/antarctic circles. the highest concentration of killer whales is between the equator and the tropics. the lowest concentration of killer whales can be found between 40–50 degrees of latitude.